公开(公告)号：DE3512223A1

公开(公告)日：1985-10-17

申请号：DE3512223

申请日：1985-04-03

Applicant: KAO CORP

Inventor： FUKUMOTO YASUHISHA ,  MORIYAMA NOBORU

IPC: C08F2/00 ,  C08F20/00 ,  C08F20/02 ,  C08F22/02 ,  C08F28/00 ,  C08F222/02 ,  C08F8/44

Abstract: A polymer or copolymer of maleic acid is produced by neutralizing (I) maleic acid in an aqueous medium with (III) an alkali metal hydroxide or ammonia at a molar ratio of (I) to (III) in the range of 100:0 to 100:90, polymerizing (I) with a polymerization initiator, adding (III) a further amount of the alkali metal hydroxide or ammonia at a molar ratio of (I) to (III) in the range of 100:100 to 100:130 in total through the previous addition and this addition and continuing the polymerization to the complete effect.

公开(公告)号：DE3473153D1

公开(公告)日：1988-09-08

申请号：DE3473153

申请日：1984-03-16

Applicant: KAO CORP

Inventor： FUKUMOTO YASUHISHA ,  MORIYAMA NOBORU ,  ITOI TAKASHI

IPC: C08F16/00 ,  C02F5/00 ,  C02F5/08 ,  C02F5/10 ,  C02F5/12 ,  C08F16/14 ,  C08F16/16 ,  C08F20/00 ,  C08F20/02 ,  C08F216/00 ,  C08F216/14 ,  C08F220/04 ,  C08F222/02 ,  C08F222/06

Abstract: Disclosed is a novel copolymer of maleic acid or a salt thereof and an adduct of an oxyalkylene and allyl alcohol, a molar ratio being from 5/100 to 50/50, a molecular weight thereof being from 400 to 20,000. The copolymer is useful as a scale-preventing agent.

公开(公告)号：CH663026A5

公开(公告)日：1987-11-13

申请号：CH147785

申请日：1985-04-04

Applicant: KAO CORP

Inventor： FUKUMOTO YASUHISHA ,  MORIYAMA NOBORU

IPC: C08F2/00 ,  C08F20/00 ,  C08F20/02 ,  C08F22/02 ,  C08F28/00 ,  C08F222/02 ,  C08F122/06 ,  C08F22/06 ,  C08F222/06

公开(公告)号：GB2156831B

公开(公告)日：1987-11-11

申请号：GB8507370

申请日：1985-03-21

Applicant: KAO CORP

Inventor： FUKUMOTO YASUHISHA ,  MORIYAMA NOBORU

IPC: C08F2/00 ,  C08F20/00 ,  C08F20/02 ,  C08F22/02 ,  C08F28/00 ,  C08F222/02 ,  C08F22/06

Abstract: A polymer or copolymer of maleic acid is produced by neutralizing (I) maleic acid in an aqueous medium with (III) an alkali metal hydroxide or ammonia at a molar ratio of (I) to (III) in the range of 100:0 to 100:90, polymerizing (I) with a polymerization initiator, adding (III) a further amount of the alkali metal hydroxide or ammonia at a molar ratio of (I) to (III) in the range of 100:100 to 100:130 in total through the previous addition and this addition and continuing the polymerization to the complete effect.

公开(公告)号：GB2156831A

公开(公告)日：1985-10-16

申请号：GB8507370

申请日：1985-03-21

Applicant: KAO CORP

Inventor： FUKUMOTO YASUHISHA ,  MORIYAMA NOBORU

IPC: C08F2/00 ,  C08F20/00 ,  C08F20/02 ,  C08F22/02 ,  C08F28/00 ,  C08F222/02 ,  C08F22/06

Abstract: A polymer or copolymer of maleic acid is produced by neutralizing (I) maleic acid in an aqueous medium with (III) an alkali metal hydroxide or ammonia at a molar ratio of (I) to (III) in the range of 100:0 to 100:90, polymerizing (I) with a polymerization initiator, adding (III) a further amount of the alkali metal hydroxide or ammonia at a molar ratio of (I) to (III) in the range of 100:100 to 100:130 in total through the previous addition and this addition and continuing the polymerization to the complete effect.